Process for manufacturing butt-hinges.



G. WEBER.

PROGESS FOR MANUFACTURING BUTT HINGES.

APPLICATION FILED NOV.4,1908.

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GUSTAV \\"EBER, OF HAGEN, GERMANY.

PROCESS FOR MANUFACTURING BUTT-HINGES.

Specification of Letters Patent.

Patented April 27, 1909.

Application filed November 4, 1908. Serial No. 461,011.

.To all whom it may concern:

Be it known that I, GUs'rAv WEBER, a citizen oi' the German Empire, residing at Hagen, in the Province ol' 'vestphalia and Kingdom of Prussia, Germany, have invented certain new and usel'ul Improvements in Processes for Manu l'acturing Butt- Hinges; and I do hereby declare the l'ollow. ing to be a full, clear, and exact description of the invention, such as will enable others. skilled in the art to which it appertains to .makeand use the same.

This invention relates to a new process for manufacturing butt-hinges.

In the case oi' the ordinary butt-hinges on the market, the two leaves are turned over at their ends to Vl'orin sockets into which the pivot-pins are `fastened by rivets or by similar means. These hinges are detective in various well known ways through being com posed ol' several parts. By making each hinge-hali Vforni a single piece the hinges are free from the defects alluded to above.

Now the present invention consists in a new process 'for manufacturing buttdringes from rolled-iron with as little waste material as possible.

The new process will now be described with reference to the accompanying drawings, in which:-

Figure 1 is a section on the line A-A ol' Fig. 2. Figs. 2 and 3 Vfront elevations ol` the upper and lower halves respectively ol' one form 0i hinge made by the new process. Fig. 4 a section on the line B-B ol` Fig. 3, Fig. 5 a front elevation oi' a second l'orm ol'l hinge made by the new process, and Fig. 6 a

lan of a rolled iron blank with thick dotted ines indicating the manner in which the saine is to be cut, and with thin dotted lines indicating the finished halves to be formed from the blank. Figs. 7, S and 9 are trans verse sections of three diiierent forms olA rolled iron blanks, all of which have substantially the plan shown in Fig. 6. Figs. l0 and 11 represent detail plan views of blanks hereinafter described.

In order to carry ont this process rolled iron is employed which, as shown in Figs. 6-9 possesses a flat web having a thickness equal to that of the leaves of the butt-hinges to be manufacture d and provided along its longitudinal edges with round reinforcing beads. Similarly shaped bars have, oi course, hitherto been employed for the manut'zrcture of hinges. These hinges, however, were ol another kind, namely knob hinges or hook-hinges provided with firmly riveted turningpins, and lnrther in the old process one of the edge beads was always hammered flat lor the purpose ot forming the hinge-leaves. ln contradistinction to this according to the present invention, the leaves ol the hinge halves are formed from the web situated between the round beads on the rolled iron blank and accordingly this web is made of a width equal to that of the hinge -leaves The round beads serve in the case et the new process only for forming the hinge-knobs, the turning-pins, and the sockets tor the latter, and they are situated according as it is desired to manufacture butt-hinges having hinge-leaves both in a plane passing through the center ol the turning-pin., or both at the same side ol: the pin, or one at one side and one at the other side el the pin, either with their axes in the central plane ol the web (Fig. 7) or both at one side olE the web (Fig. il) or the one at one side and the other at the other side (Fig. 8).

Vln order to make the hinge illustrated in Figs. l to li, the rolled-iron blank is cut up in the manner indicated by the thick dotted lines in Fig. 6, that is, the web for forming the leaves otl the hinge-halves is cut through transversely7 the distance between the cuts being equal to the height of the leaves and between these transverse cuts longitudinal cuts are made alternately between the web and the bead at one side, and the web and the bead at the other side, the beads beingl cnt through in such a manner that in the first place two blanks are provided Vfor forming two upper hinge-halves with projections vfor enabling the knobs to be formed by turning (Fig. l0) and that then two blanks l'or two lower hinge-halves (Fig. ll) are provided, one "portion or the round bead serving for forming the turning-pin and another portion for the knob. ln order to obtain the iinished hinge-halves it is only necessary vto turn down the projections to forni the knobs and to lorm the turning-pin socket in the upper hingehalf by boring and the turning-pin on the lower vhingedralt by turning. This work can be readily performed by suitably constructed automatic machines.

The waste of material is very slight, the only material wasted being due to turning and boring operations performed on the blanks (Figs. 10 and 11). By cutting up the rolled-iron as described, waste is almost co1n- Y loose.

pletely avoided. The butt hinges (Figs. 1-4) produced by this process consequently are not higher in price than others. They are, however, materially better. For since in the case of the hinges made by the new process, the'plates 2 provided with the screw'- holes l form one single piece together with the lateral beads or knuckles 3 and 4, the knobs 5 and the turning-pin 6, it is oi' course impossible -for the pin and so on to become The strength and durability of the new hinges is consequently very much greater than is the case with ordinary hinges. T he hole in the upper hinge-half for the reception of the turning-pin may be continued up to almost the knob oi' the upper half so that with a hinge-leaf of given width 'the two halves have a longer bearing than would otherwise be possible. In 'that case the knob on the upper half may be provided with a passage 8 opening into the hole 7 vfor the reception of the turning-pin, so that at' any time it is possible conveniently to lubri cate the hinge through this passage without unhinging vthe door. Finally this )rocess permits the rturning-pin 6 and the hole 7 `Vfor the reception oi'cthe latter to be so shaped that the upper hinge-halt' and consequently the door not only rests on the upper end of the p in but is also provided with a bearing 9 at the lower end of the pin, which bearing is suitably conical, as is evident from Figs. 3 and 4 and Fig. 5. By this increase of the bearing surface too rapid wear and consequently sinking of the door 'is prevented. In

the case of this process the butt-hinge 'may without any trouble also be so shaped that the roundbead on the lower hinge-half for a short distance above the leaf is not reduced in size when the pin is formed by turning, so that as is 'evident fron'i Fig. 5, a space is 'left between the leaves o'l' the two halves.

Vhat l claim as my invention and desire to secure by Letters Patent is The process for manufacturing butthinges 'l'roin rolled-iron comprising a web provided with lateral round beads, said process consisting in cutting the web transversely, the distance between the cuts being equal to the width of the hinge-leaves to Abe produced and in cutting the web longitudinally between the transverse cuts alternately b'etween the web and the bead at one side, and the web and the bead at Athe other side., and in cutting 'the beads through in such a man ner that in the irst place two blanks are rovided for forming two Vupper hinge-heu ves with projections lfor enabling the knobs 'to be formed by turning, and that then two blanks for the lower hinge-halves are provided, one

y portion o'l` the round bead serving for Al'orniing the turning-pin and another portion Afor the knob.

ln testimony whereof, l have signed my name to this spec'icatio'i'i in the presence ol' two subscribing witnesses.

, GUSTAL V WEBER. Vvvitnesses OTTO KNIG. W'ALTER HULSKAMP. 

